Thermostatic radiator control



Oct. 6

C. C. MODERMOTT THERMOSTATIC RADIATOR CONTROL Filed Sept. 5, 1922 lNVENTOR 65.111 fDafirzozZ" ATTORNEY To all tvizom it may concern:

. STATES CHARLES MCDERMOTT, OF CHICAGO, ILLINOIS.

THERMOSTATIC RADIATOR CONTROL.

Application filed September 5, 1922. Serial No. 586,255.

Be it known that I, CHARLES C. MoDnn- MOTT, a citizen of the UnitedStates, resld ing at Chicago, in the county of Cook and State ofIllinois, have invented new and useful Improvements in ThermostaticRadiator Controls, of which the following is a specification.

This invention relates to controls for heating radiators, and an objectof the invention is to provide a window operated thermostatic controlfor automatically shutting ofl the passing of heating agent through aradiator when the window is open, and which will permit the passing ofthe heating agent through the radiator when the window is closed.

In hotels, oflice buildings, rooming houses and apartments, as well asdwellings, when the room becomes too hot the'occupant opens the windowand when the window is opened for cooling off the room it places anextra burden. upon the heating system of the building causingpractically the heating of the out doors and consequently requiring theuse of a greater amount of fuel and the needless waste of heat, and itis an object of this invention to provide a structure for overcomingthis needless waste of heat, by cutting oil the passage of the heatingagent through the radiator when the window is open, and then when theroom is sufliciently cooled the natural instinct of the occupant willcause him to close the window at which time the radiator valve will bereopened to permit the heating agent to pass through the radiator.

Another object of the invention is the provision of an arrangement ofdevices whereby the radiator may be cut oil from a source of heatautomatically in the raising of a window.

Besides the above my invention is distinguished in the construction of avalve and pipe connection that may be used with the well known Johnsonpneumatically controlled device for radiators so that when the window israised or lowered, beyond a predetermined point, the radiator will beentirely cut ofi from the source of heat and besides, action of thethermostatic valve device and the radiator cut off valve renderedinoperative.

With these and other objects in view the invention will be betterunderstood from the following detailed description taken in connectionwith the accompanying drawing wherein:

Fig. 1 is a diagrammatic view of the'complete system.

Fig. 2 is an enlarged view of the valve and its associate parts.

Fig. 3 is an enlarged sectional View of the control valve.

Figs. 4 and 5 are diagrammatic views illustrating the control valve inits two positions. Again referring to the drawing illustratmg one of themany constructions of my invention the letter B designates an ordinaryradiator and the letter C window sashes that are raised and lowered in awell known manner.

The numeral 1 designates a pneumatically controlled cut oil" valve for aradiator which 1s now used in conjunction with the well knownthermostatic valve device 2 wherein the thermostatic strip controls theopening and closing of a valve according to the temperature of the room.The numeral 3 designates my improved control valve comprising the casing4 having the inlet 5 and outlets 6 and 7 and the port 8. The plug thisprovided with angularly disposed inner communicating passa es 10, 11,and 12 and further with the poc et 13. The outlet 6 is arranged incommunication with the thermostatic valve device 2 by the main branchpipe 14 while the port 8 is connected by an auxiliary branch pipe 15with the thermostatic valve device. A supply pipe 16 supplies air underpressure from any suitable source to inlet 5 while the pipe 17establishes communication between the outlet 7 and the movable elementof the cut off valve. For the purpose of operating the V valve in themovement of the window sash I provide the link mechanism 19 consistingof the valve handle 20 that is held in a pre determined position b thespring 21. The link 22 and the slotte cam arm 23 are pivoted to thewindow sash as indicated at 24. As the window sash C passes by the camarm 23 spring 21 will throw the link mechanism into position illustratedin Fig. 2 with the plug 9 in the position illustrated in ures 3 and 4 sothat air under pressure will pass directly to the cut oil valve foroperating same in cutting off the steam supply to the radiator. When thewindow is lowered and the link mechanism operated the plug will assumethe position illustrated in Fig.

' directly to the thermostatic valve device to allow same to functionproperly in the usual manner.

It will be noted pocket 13 plays an important part'in that when the plugis in position illustrated in Figs. 3 and 4 the air pressure passeddirectly to the control valve will not be allowed to; escape through thevalve of the thermostatic device when the same is in position to exhaustair from the cut oil valve due to the lowering of the temperature.

As illustrated in Fig. 5 air is allowedto readily pass to and from thecut ofl' valve according to the operation of thethermd static device andthus it will be seen that with my improved invention the usual operationof the thermostatic system now in use is not interfered with when thewindow is not raised above a predetermined point. I

It is, of course, to be understood that the link may be positioned atany point along the frame so that the window may be opened any requireddistance before the radiator is llt is, of course, to be understood thatthe invention may be constructed in various other manners and the partsassociated in diflerent relations and, therefore, I do not desire to belimited in any manner except as set forth the claims hereunto appended.

Having thus described my invention what I claim is:

1. In a room, the combination of a heat supply line, a ventilatingdevice, a fluid pressure valve interposed in the heat supply line andadapted for governing the heat supply through said line, a fluidpressure line leading to said valve, thermal means controlling the fluidsupply to said valve, and means for connecting the fluid pressure linedirectly with the valve in the heat supply line by rendering theventilating device active and for connecting said fluid pressure linewith the valve in the heat supply line by way of said thermalcontrolling means when the ventilating device is rendered inactive.

2. In a room, the combination of a radiator having a return, a window, aheat supply line for the radiator, a fluid pressure valve adapted forcontrolling the heat supply to' the radiator independently of saidreturn, a controlling fluid line leading to said valve, thermal meanscontrolling said line, and means for connecting said line directly withthe valve controlling the heat supply line in opening the window and forconnecting said controlling fluid line I with said thermal controllingmeans by closing the window.

3. In a room, the combination of a'radiw tor, a window, a heat supplyline for the radiator, a fluid pressure valve interposed ling device tothe window controlled valve, a controlling fluid line leading from'thewindow controlled valve to the fluid pres--- sure valve in the heatsupply line, said window controlled valve having means for connectingthe first controlling fluid line leading to the window controlled valvewith the controlling fluid line leading from the window controlled valveto the thermal controlling device, and for simultaneously connecting thecontrolling fluid line leadin from the thermal controlling device to t ewindow controlled valve with the controlling'fluid line leading from thewindow controlled valve to the valve in the heat supply line when thewindow is closed, and for disconnecting the line leading to the windowvalve from the line leading to the thermal controlling device and theline leading from the thermal controlling device from the line leadingfrom the window valve to the valve in the heat supply line, andsimultaneously connecting the line leading to the win dow valve directlywith the line leading from thewindow valve to the valve in the heatsupply line when the window is opened.

4; In a room, the combination of a radiator, a window, a heat supplyline for the radiator, a fluid pressure valve interposed in the heatsupply line and controlling the heat supply to theradiator, a windowcontrolled valve, a thermal controlling device, a. pair of said firstpair of pipe lines with line 1 of the second pair of pipe lines and line2 of the first pair of pipe lines with'line 2 of the second pair of pipelines when the window is closed, and means for connecting line 1 of thefirst pair of pipe lines with line 2 of the second pair of pipe lineswhen the window is opened.

5. In a room, the combination of a radia-- tor, a window, a heat supplyline for the radiator, a fluid pressure valve interposed in the heatsupply line and controlling the heat supply to the radiator, a windowcontrolled lit) from said valve, line 1 0 valve, a thermal controllingdevice, a pair of pipe lines leading to the window controlled valve apair of ipe lines leading f said first pair of pipe lines constituting acontrolling fluid supply line, and line 2 of said first pair of pipelines leading from the thermal controlling device; line 1 of said secondpair of pipe lines leading to the thermal controlling device, and line 2of said second pair of pipe lines leading to the valve in the heat suply line, the window centrolled' valve includlng a rotatable valvemember having ports for connecting line 1 of the first pair of pipeports for connecting line 1 of the first pair of pipe lines with line 2of the second pair of pipe lines when the window is opened, and

means operatively connecting" said valve member with the window to turnsaid memher into the second of said positions by opening of the window.

In testimony whereof I afiix my signature.

CHARLES C. MODERMOTT.

